func greetGreetee(c cli.Command) {
greeting := c.Parent().Param("greeting")
greetee := c.Param("greetee")
str := fmt.Sprintf("%s %s", greeting, greetee)
str = styleByFlags(str, c)
c.Println(str, strings.Join(c.Args().Strings(), " "))
}
// the greet command run by the root command
func greet(c cli.Command) {
greeting := c.Param("greeting")
str := fmt.Sprintf("%s", greeting)
str = styleByFlags(str, c)
c.Println(str)
}